Smart plug



FIG. 1 is a front perspective view of a smart plug showing my new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a left side plan view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a front plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a right side plan view thereof; and,

FIG. 8 is a rear plan view thereof.

The broken lines shown in the drawings are included for the purpose of illustrating unclaimed portions of the smart plug and form no part of the claimed design. 

CLAIM The ornamental design for a smart plug, as shown and described. 